Giovanna Fletcher has signed up for 'I'm A Celebrity... Get Me Out Of Here!'.

Giovanna Fletcher

Giovanna Fletcher

The 35-year-old author - whose husband is McFly singer Tom Fletcher - is said to be isolating in a holiday cottage with her family in Anglesey ahead of taking part in this year's ITV series, which will take place at Gwrych Castle in North Wales as opposed to the Australian jungle.

A source told The Sun newspaper: "Giovanna is a brilliant signing. She’s incredibly popular on Instagram with mums and has over 1.3million followers.

"She’s moved in famous circles for years. Not only is she best pals with Emma Willis but she’s close to royalty, married to a boyband star and her brother is Mario Falcone from 'TOWIE'.

"She’s decided the time is right to embrace the limelight."

As well as penning 11 books, Giovanna also hosts her 'Happy Mum Happy Baby' podcast, which featured the Duchess of Cambridge as a guest earlier this year.

Other stars who could be joining Giovanna at the spooky castle, which is said to be haunted, are former 'EastEnders' actor Shane Richie, Olympian Mo Farah, tenor Russell Watson, Paralympian Hollie Arnold and pro dancer AJ Pritchard.

Following speculation that Shane may well be stepping foot in the Welsh building, he was installed as 3/1 favourite with bookmaker Ladbrokes to be crowned King of the Castle, but just days later his odds have been cut to 5/2.

Hot on the Alfie Moon actor's heels is Mo, who is 5/1, followed by TV presenter Vernon Kay (6/1), and former 'EastEnders' actress Jessica Plummer is an 8/1 shot.

Russell and Hollie are priced at 10/1, but anyone keen on a punt at bigger odds might like the idea of Corrie's Beverley Callard at 25/1.'I'm A Celebrity' will begin on November 15th.